Home / 30,388.70-45,563.27-12,614.46

Finding the Fourth Proportional to 30,388.70, 45,563.27 and 12,614.46

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Solution

The fourth proportional to 30,388.70, 45,563.27 and 12,614.46 is: 18,913.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.70 : 45,563.27 = 12,614.46 : x
  2. Step 2: Convert to fraction form
    30,388.70/45,563.27 = 12,614.46/x
  3. Step 3: Cross multiply
    30,388.70x = 45,563.27 × 12,614.46
  4. Step 4: Simplify right side
    30,388.70x = 574,755,983.81
  5. Step 5: Solve for x
    x = 574,755,983.81/30,388.70
  6. Step 6: Final answer
    x = 18,913.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.